How Can We Help?
C9401,C9402 (bizhub 950i/850i)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
Contents
| Trouble type | – C9401: Exposure LED lighting failure – C9402: Exposure LED lighting abnormally |
| Rank | B |
| Trouble detection condition | – C9401: The output from the CCD sensor is a predetermined value or less during CCD sensor gain adjustment. – C9402: The average output value of the CCD sensor with the scanner at its standby position is a predetermined value or more at the end of a scan job. |
| Trouble isolation | Scanner |
| Relevant electrical parts | – LED exposure unit – Flat cable (LED exposure unit) – CCD unit – Scanner drive board (SCDB) – CPU board (CPUB) – Base board (BASEB) |
Procedure
- Correct the harness connection between SCDB CN3-LU201 if faulty.
- Check the connector between SCDB CN2-BASEB CN1E for proper connection and correct as necessary.
- Check the connector between CCDB CN2-BASEB CN6 for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- Replace the LED exposure unit.
- Replace the CCD unit.
- SCDB ICP2 conduction check.
- Replace SCDB.
- Replace CPUB.
- Replace BASEB.